/*
 * Copyright 2017-2019 CodingApi .
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.codingapi.txlcn.txmsg.netty.handler;

import com.codingapi.txlcn.common.util.serializer.SerializerContext;
import com.codingapi.txlcn.txmsg.netty.bean.NettyRpcCmd;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufInputStream;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.MessageToMessageDecoder;
import lombok.extern.slf4j.Slf4j;

import java.util.List;

/**
 * @author lorne
 */
@Slf4j
public class ObjectSerializerDecoder extends MessageToMessageDecoder<ByteBuf> {


    @Override
    protected void decode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out) throws Exception {
        if(msg==null){
            return;
        }
        ByteBufInputStream byteBufInputStream =  new ByteBufInputStream(msg, true);
        NettyRpcCmd object = SerializerContext.getInstance().deSerialize(byteBufInputStream, NettyRpcCmd.class);
        out.add(object);
    }


}
